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    What is meant if this light comes on while driving?

    DVSA-style practice question · Safety and your Vehicle

    Illustration for the theory test question: What is meant if this light comes on while driving?

    The answer options

    • Your seat belt is not fastened
    • Your engine oil level is low
    • Your headlight has failed
    • There is a fault in the braking systemCorrect

    Why that is the answer

    This red warning symbol indicates a fault in your braking system, such as dangerously low brake fluid or a mechanical issue. If it illuminates while driving, DVSA guidance advises you to stop safely as soon as possible and investigate. You should not confuse this symbol with the engine oil light, which looks like an oil can, or the seatbelt warning, which shows a seated figure.

    How this comes up in the real test

    Questions from safety and your vehicle appear throughout the 50-question multiple-choice section, and the wording changes between versions. Learn the rule rather than the sentence: the DVSA can ask the same point from the opposite direction, and a memorised answer falls over the moment the phrasing moves.

    The pass mark is 43 out of 50, so seven wrong answers is your entire margin. If a whole category is shaky, run the topic practice below until you are getting every question right for the right reason, then go back to full mocks under the clock.

    More safety and your vehicle questions